.danmu{
    z-index: 999;
    width: 100px;
    height:30px;
    line-height: 28px;
    background: green;
    border-radius: 5px;
    border:1px solid red;
    color: red;
    outline: none;
}
div.mask{
    position:fixed;
    width:100%;
    height:100%;
    background:rgba(0,0,0,0.8);
    opacity:0.5;
    top:0px;
    left:0px;
}
div.bottom{
    position: relative;
    bottom: 0px;
    width:300px;
    height:77px;

    text-align:center;
    line-height:77px;
}
div.bottom input.content{
    width:50%;
    min-width: 100px;
    height:37px;
    border:none;
    border-radius:10px 0px 0px 10px;
    font-size:16px;
    padding:0 10px;
    outline:none;
}
div.bottom a.send{
    background-color:green;
    color: #ffffff;;
    display:inline-block;
    width:100px;
    height:38px;
    line-height:37px;
    text-align:center;
    position:relative;
    left:-10px;
    top:2px;
    border-radius:0px 10px 10px 0px;
    text-decoration:none;
    font-family:'Microsoft Yahei';
}
div.mask a.button{
    width:30px;
    height:30px;
    border-radius:50%;
    background-color:green;
    color:#fff;
    position:fixed;
    top:20px;
    right:20px;
    text-align:center;
    line-height:30px;
    font-size:20px;
    font-family:'Microsoft Yahei';
    border:1px solid #fff;
    text-decoration:none;
    cursor:pointer;
}
div.text{
    z-index: 999999;
    color:red;
    position:fixed;
    right:0px;
    font-size:20px;
    white-space: nowrap;
}